Minnesota DNR fisheries surveys · latest July 27, 2015
Twenty-One Lake FishingAWater-quality grade A
Minnesota DNR surveys at Twenty-One Lake average 7.43 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated July 27, 2015. Length samples in the latest survey that recorded them ran 17–29 inches. In Hubbard County, Minnesota, Twenty-One Lake carries an overall water-quality grade of A. Water clarity averages 17.0 feet of visibility, and the lake has public access. The survey figures on this page are Minnesota DNR's own; the water-quality grade comes from EPA Water Quality Portal samples. Neither is a forecast of today's bite.
Species recorded at Twenty-One Lake
6 species on the Minnesota DNR list for this lake. A species on the list has been recorded here; it does not mean it is catchable today or in every part of the lake.
Stocking at Twenty-One Lake
No stocking record for Twenty-One Lake appears in the Minnesota DNR material on file. That is an absence in the published record, not a confirmation that the lake is unstocked — some waters are managed as naturally reproducing and never appear in a stocking list at all.
Getting on the water
Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR surveys at Twenty-One Lake average 7.43 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated July 27, 2015. Length samples in the latest survey that recorded them ran 17–29 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Twenty-One Lake A from EPA Water Quality Portal chemistry. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2015-07-27 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Bluegill | 47.41 | 0.06 lb |
| Yellow Perch | 8.24 | 0.21 lb |
| Northern Pike | 7.43 | 1.97 lb |
| Pumpkinseed | 3.54 | 0.11 lb |
| Largemouth Bass | 1.19 | 0.73 lb |
| Rock Bass | 0.50 | 1.07 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE means more abundant in standardized sampling. This is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Bluegill
Yellow Perch
Northern Pike
Pumpkinseed
From the 2015-07-27 survey
Lake Twenty-One is a small, 28 acre lake located within the Paul Bunyan State Forest in Hubbard County. There is a public access and day-use area with picnic sites on the north shore of the lake. There are DNR maintained primitive campground sites on the east shore and south shore between Lake Twenty-One and Nelson…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Twenty-One Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Twenty-OneFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Twenty-One (1315)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — Twenty-OnePublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Twenty-One Lake?
Minnesota DNR surveys at Twenty-One Lake average 7.43 northern pike per unit of sampling effort (CPUE) across 4 surveys. The most recent is a Standard Survey dated July 27, 2015. Length samples in the latest survey that recorded them ran 17–29 inches. Minnesota DNR lists 6 species for the lake in total. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Twenty-One Lake last surveyed?
The most recent fisheries survey on file for Twenty-One Lake is dated July 27, 2015. Survey intervals vary by lake and by species; a gap of several years between surveys is normal and does not mean the record is missing.
Is Twenty-One Lake stocked?
No stocking record for Twenty-One Lake appears in the Minnesota DNR material on file. That is not the same as a confirmed unstocked lake: it means no stocking document was published for it in the records this page draws on.
Does the water-quality grade tell me how Twenty-One Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Twenty-One Lake A from EPA Water Quality Portal chemistry. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
A water-quality grade is not a consumption advisory. Mercury and PCB advice for Minnesota waters comes from MDH, and it is issued per species and per size class — a lake can grade well and still carry a meal limit on larger predator fish.
Where to stay near Twenty-One Lake
Top-rated places to stay near Twenty-One Lake
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